1 /* ScummVM - Graphic Adventure Engine
2 *
3 * ScummVM is the legal property of its developers, whose names
4 * are too numerous to list here. Please refer to the COPYRIGHT
5 * file distributed with this source distribution.
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
20 *
21 */
22
23 #include "common/system.h"
24 #include "graphics/macega.h"
25 #include "scumm/actor.h"
26 #include "scumm/charset.h"
27 #include "scumm/usage_bits.h"
28 #include "scumm/verbs.h"
29
30 namespace Scumm {
31
mac_drawStripToScreen(VirtScreen * vs,int top,int x,int y,int width,int height)32 void ScummEngine::mac_drawStripToScreen(VirtScreen *vs, int top, int x, int y, int width, int height) {
33
34 const byte *pixels = vs->getPixels(x, top);
35 const byte *ts = (byte *)_textSurface.getBasePtr(x * 2, y * 2);
36 byte *mac = (byte *)_macScreen->getBasePtr(x * 2, y * 2);
37
38 int pixelsPitch = vs->pitch;
39 int tsPitch = _textSurface.pitch;
40 int macPitch = _macScreen->pitch;
41
42 // In b/w Mac rendering mode, the shadow palette is implemented here,
43 // and not as a palette manipulation. See special cases in o5_roomOps()
44 // and updatePalette().
45 //
46 // This is used at the very least for the lightning flashes at Castle
47 // Brunwald in Indy 3, as well as the scene where the dragon finds
48 // Rusty in Loom.
49 //
50 // Interestingly, the original Mac interpreter does not seem to do
51 // this, and instead just renders the scene as if the palette was
52 // unmodified. At least, that's what Mini vMac did when I tried it.
53
54 if (_renderMode == Common::kRenderMacintoshBW) {
55 for (int h = 0; h < height; h++) {
56 for (int w = 0; w < width; w++) {
57 int color = _shadowPalette[pixels[w]];
58 if (ts[2 * w] == CHARSET_MASK_TRANSPARENCY)
59 mac[2 * w] = Graphics::macEGADither[color][0];
60 if (ts[2 * w + 1] == CHARSET_MASK_TRANSPARENCY)
61 mac[2 * w + 1] = Graphics::macEGADither[color][1];
62 if (ts[2 * w + tsPitch] == CHARSET_MASK_TRANSPARENCY)
63 mac[2 * w + macPitch] = Graphics::macEGADither[color][2];
64 if (ts[2 * w + tsPitch + 1] == CHARSET_MASK_TRANSPARENCY)
65 mac[2 * w + macPitch + 1] = Graphics::macEGADither[color][3];
66 }
67
68 pixels += pixelsPitch;
69 ts += tsPitch * 2;
70 mac += macPitch * 2;
71 }
72 } else {
73 for (int h = 0; h < height; h++) {
74 for (int w = 0; w < width; w++) {
75 if (ts[2 * w] == CHARSET_MASK_TRANSPARENCY)
76 mac[2 * w] = pixels[w];
77 if (ts[2 * w + 1] == CHARSET_MASK_TRANSPARENCY)
78 mac[2 * w + 1] = pixels[w];
79 if (ts[2 * w + tsPitch] == CHARSET_MASK_TRANSPARENCY)
80 mac[2 * w + macPitch] = pixels[w];
81 if (ts[2 * w + tsPitch + 1] == CHARSET_MASK_TRANSPARENCY)
82 mac[2 * w + macPitch + 1] = pixels[w];
83 }
84
85 pixels += pixelsPitch;
86 ts += tsPitch * 2;
87 mac += macPitch * 2;
88 }
89 }
90
91
92 _system->copyRectToScreen(_macScreen->getBasePtr(x * 2, y * 2), _macScreen->pitch, x * 2, y * 2, width * 2, height * 2);
93 }
94
mac_drawLoomPracticeMode()95 void ScummEngine::mac_drawLoomPracticeMode() {
96 // In practice mode, the game shows the notes as they are being played.
97 // In the DOS version, this is drawn by script 27 but the Mac version
98 // just sets variables 50 and 54. The box is actually a verb, and it
99 // seems that setting variable 50 is pretty much equal to turning verb
100 // 53 on or off. I'm not sure what the purpose of variable 54 is.
101
102 int x = 216;
103 int y = 377;
104 int width = 62;
105 int height = 22;
106 int var = 50;
107
108 byte *ptr = (byte *)_macScreen->getBasePtr(x, y);
109 int pitch = _macScreen->pitch;
110
111 int slot = getVerbSlot(53, 0);
112 VerbSlot *vs = &_verbs[slot];
113
114 vs->curmode = (VAR(var) != 0);
115 vs->curRect.left = x / 2;
116 vs->curRect.right = (x + width) / 2;
117 vs->curRect.top = y / 22;
118 vs->curRect.bottom = (y + height) / 2;
119
120 _macScreen->fillRect(Common::Rect(x, y, x + width, y + height), 0);
121
122 if (VAR(var)) {
123 for (int w = 1; w < width - 1; w++) {
124 ptr[w] = 7;
125 ptr[w + pitch * (height - 1)] = 7;
126 }
127
128 for (int h = 1; h < height - 1; h++) {
129 ptr[h * pitch] = 7;
130 ptr[h * pitch + width - 1] = 7;
131 }
132
133 // Draw the notes
134 int colors[] = { 4, 12, 14, 10, 11, 3, 9, 15 };
135
136 for (int i = 0; i < 4; i++) {
137 int note = (VAR(var) >> (4 * i)) & 0x0F;
138
139 if (note >= 2 && note <= 9) {
140 _charset->setColor(colors[note - 2]);
141 _charset->drawChar(14 + note, *_macScreen, i * 13 + x + 8, y + 4);
142 }
143 }
144 }
145
146 _system->copyRectToScreen(ptr, pitch, x, y, width, height);
147 }
148
mac_createIndy3TextBox(Actor * a)149 void ScummEngine::mac_createIndy3TextBox(Actor *a) {
150 int width = _macIndy3TextBox->w;
151 int height = _macIndy3TextBox->h;
152
153 _macIndy3TextBox->fillRect(Common::Rect(width, height), 0);
154
155 int nameWidth = 0;
156
157 if (a) {
158 int oldID = _charset->getCurID();
159 _charset->setCurID(2);
160
161 const char *name = (const char *)a->getActorName();
162 int charX = 25;
163
164 for (int i = 0; name[i] && nameWidth < width - 50; i++) {
165 _charset->drawChar(name[i], *_macIndy3TextBox, charX, 0);
166 nameWidth += _charset->getCharWidth(name[i]);
167 charX += _charset->getCharWidth(name[i]);
168 }
169
170 _charset->drawChar(':', *_macIndy3TextBox, charX, 0);
171 _charset->setCurID(oldID);
172 }
173
174 if (nameWidth) {
175 _macIndy3TextBox->hLine(2, 3, 20, 15);
176 _macIndy3TextBox->hLine(32 + nameWidth, 3, width - 3, 15);
177 } else
178 _macIndy3TextBox->hLine(2, 3, width - 3, 15);
179
180 _macIndy3TextBox->vLine(1, 4, height - 3, 15);
181 _macIndy3TextBox->vLine(width - 2, 4, height - 3, 15);
182 _macIndy3TextBox->hLine(2, height - 2, width - 3, 15);
183 }
184
mac_drawIndy3TextBox()185 void ScummEngine::mac_drawIndy3TextBox() {
186 // The first two rows of the text box are padding for font rendering.
187 // They are not drawn to the screen.
188
189 int x = 96;
190 int y = 32;
191 int w = _macIndy3TextBox->w;
192 int h = _macIndy3TextBox->h - 2;
193
194 // The text box is drawn to the Mac screen and text surface, as if it
195 // had been one giant glyph. Note that it will be drawn on the main
196 // virtual screen, but we still pretend it's on the text one.
197
198 VirtScreen *vs = &_virtscr[kMainVirtScreen];
199
200 byte *ptr = (byte *)_macIndy3TextBox->getBasePtr(0, 2);
201 int pitch = _macIndy3TextBox->pitch;
202
203 _macScreen->copyRectToSurface(ptr, pitch, x, y, w, h);
204 _textSurface.fillRect(Common::Rect(x, y, x + w, y + h), 0);
205
206 // Mark the virtual screen as dirty. The top and left coordinates are
207 // rounded down, while the bottom and right ones are rounded up.
208
209 int vsTop = y / 2 - vs->topline;
210 int vsBottom = (y + h) / 2 - vs->topline;
211 int vsLeft = x / 2;
212 int vsRight = (x + w) / 2;
213
214 if ((y + h) & 1)
215 vsBottom++;
216
217 if ((x + w) & 1)
218 vsRight++;
219
220 markRectAsDirty(kMainVirtScreen, vsLeft, vsRight, vsTop, vsBottom);
221 }
222
mac_undrawIndy3TextBox()223 void ScummEngine::mac_undrawIndy3TextBox() {
224 int x = 96;
225 int y = 32;
226 int w = _macIndy3TextBox->w;
227 int h = _macIndy3TextBox->h - 2;
228
229 _macScreen->fillRect(Common::Rect(x, y, x + w, y + h), 0);
230 _textSurface.fillRect(Common::Rect(x, y, x + w, y + h), CHARSET_MASK_TRANSPARENCY);
231
232 VirtScreen *vs = &_virtscr[kMainVirtScreen];
233
234 int vsTop = y / 2 - vs->topline;
235 int vsBottom = (y + h) / 2 - vs->topline;
236 int vsLeft = x / 2;
237 int vsRight = (x + w) / 2;
238
239 if ((y + h) & 1)
240 vsBottom++;
241
242 if ((x + w) & 1)
243 vsRight++;
244
245 markRectAsDirty(kMainVirtScreen, vsLeft, vsRight, vsTop, vsBottom);
246 }
247
mac_undrawIndy3CreditsText()248 void ScummEngine::mac_undrawIndy3CreditsText() {
249 if (_macScreen) {
250 // Set _masMask to make the text clear, and _textScreenID to
251 // ensure that it's the main area that's cleared. Note that
252 // this only works with the high-resolution font.
253 _charset->_hasMask = true;
254 _charset->_textScreenID = kMainVirtScreen;
255 restoreCharsetBg();
256 } else {
257 // The DOS VGA version clear the text by using the putState
258 // opcode. I would have been more comfortable if I could have
259 // compared it to the EGA version, but I don't have that.
260 // Judging by the size and position of the object, they should
261 // be the same.
262 putState(946, 0);
263 markObjectRectAsDirty(946);
264 if (_bgNeedsRedraw)
265 clearDrawObjectQueue();
266 }
267 }
268
269 } // End of namespace Scumm
270